4. CA MICS Facilities › 4.2 CA MICS Component Generator (MCG) › 4.2.4 Generator Definition Statements › 4.2.4.4 Standard Data Element Definition Statements

4.2.4.4 Standard Data Element Definition Statements

Five of the generation definition statements define data
elements within a file.  These statements are grouped in
clusters, according to function.  The statement types are
TYPE, ALIAS, NAME, EXP, and DEPEND.

The TYPE statement defines summarization characteristics for
one or more data elements.  A minimum of one TYPE statement
per file must be defined, with no maximum number of TYPE
statements per file.

The following apply to the definition of an individual data
element:

    - The ALIAS statement is optional.  An ALIAS statement
      defines a data element name, other than the real name
      of the data element, under which MICF will look for
      documentation.  For example, data elements TSOSDST1
      through TSOSDST8 will be documented on the CA MICS data
      dictionary by the member called TSOSDSTX.  An ALIAS
      statement applies only to the data element defined by
      the NAME statement following the ALIAS statement.

    - The NAME (essential) or NAMX (non-essential) statement
      gives the characteristics of the data element itself.
      Included on this statement are the short name and title
      of the data element, the optional group to which the
      data element belongs (if any), and the timespans of
      the file on which the data element is kept or is part
      of the file key structure.

    - The EXP statement is used for data elements whose
      summarization TYPE is C, for computed.  The EXP
      statements following each NAME or NAMX statement for
      C-type data elements contain SAS code that calculates
      the value of the data element.

    - The optional DEPEND statement relates the data element
      defined by the previous NAME or NAMX statement to one
      or more other data elements on the same file.  Each
      DEPEND statement may list one or more data element
      names, and one or more DEPEND statements may be used
      for any data element.

      Note:  DEPEND statements CANNOT refer to elements on
             other files.

      For example, the average response time for CICS
      transactions is CSYAVTTM.  It would not be appropriate
      to have CSYAVTTM on the file in any timespan that does
      not contain the data elements necessary to calculate
      CSYAVTTM.  These data elements are the total number of
      transactions CSYTRANS and the total response time
      CSYTRSTM.

The grouping and order of the statements are important
because of the hierarchical nature of MCG statements.  This
diagram illustrates the order of statements:


        +------------------------- FILE ...
        |         +------------------- TYPE ....
        |         |                     +- ALIAS ...
        |         |                     |  NAME ...
        |         | Data element group -+  EXP 01 ...
        |         |                     |  EXP 02 ...
        |  type   |                     |  EXP nn ...
        |  group -+                     +- DEPEND ...
        |         |
 file   |         | Data element group -+- NAME ...
 group  +         |                     +- EXP 01 ...
        |         |
        |         |                     +- NAME ...
        |         | Data element group -+  EXP 01 ...
        |         +-------------------- +- DEPEND ...
        |
        |
        |  more
        |  type
        |  groups - ...
        |
        V